Machine for measuring the surface of leather or the like.



A. ABEL.

V MACHINE FOR MEASURING THE SURFACE OF LEATHER OR THE LIKE APPLICATION FILED JAN. 27, 1914.

1 1 1 0,278, Patented Sept. 8, 1914.

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THE NORRIS PETERS CO" 0 'HOTO-LITPYIOA, WASHINGTON. D. C.

A. ABEL.

MACHINE FOR MEASURING THE SURFACE OF LEATHER OR THE LIKE.

APPLIOATION FILED JAN. 27, 1914.

1', 1 10,278. Patented Sept. 8, 1914.v

Z SHEETS-SHEET 2.

Fig.4.

THE NORRIS PETERS 60.. PHOTO-LITHO., WASHINGTON, O. C.

caused by UNITED STATES PATENT OFFICE.

AUGUST ABEL, OF FRANKFORTON-THE-1EAIN, GERMANY, ASSIGNOR TO MASCHINEN- FABRIK MOENUS A.G., OF FRANKFORT-ON-THE-IEAIN, GERMANY.

MACHINE FOR MEAS UBING TEE SURFACE 013 LEATHER OR THE LIKE.

To'aZZ whom it may concern Be it known that I, ihUGUST ABEL, a subject of the King of Bavaria, residing at l Blanchardstrasse, Frankfort-on-the Main, in the'K'ingdom of Prussia and Empire of Gen many, have invented new and useful Improvements in ivlachines for Measuring the Surface of Leather or the like, of which the following is a specification.

My invention relates to machines measuring the surfaces of leather or like, in which the measuring wheels are adapted to roll over the leather, and has for its object to obviate in such machines any differences or inaccuracies of measurement different thicknesses of the leather. Moreover, the invention is designed to also exclude such inaccuracies as are due to the confining lines of the leather running obliquely to the direction of the travel.

According to my said invention the machine is so constructed that the measuring operation is commenced by'continuously actfor the ing feeler rolls which at the frontand rear edges of the leather automatically establish and interrupt the connection of the measuring parts witn the transmission gear, the commencement and termination of the measuring operation being however independent of the upward or downward movement of the measuring parts during the introduction and exit of the leather.

In the accompanying drawings I have represented, by way of example, a constructional form of my said invention.

Figure 1 is a transverse section through the machine, showing the gear requisite for the measuring operation of a measuring wheel and including a toothed wheel or segment necessary for the transmission of the measurement to the indicating device. All the parts in the figure appear'm the position of rest, wherein the entire mechanism servraised by the leather introduced between it Specification of Letters Patent.

Patented SeptS, 1914.

'Application filed January 27, 1914. Serial No. 814,834.

and the feed roller, whereas the feeler roll as yet occupies its position of rest. Fig. 1 represents the same parts as Fig. 3, the leather introduced between the feed roller and the measuring wheel having raised the feeler roll. Fig. 5 represents thesame parts as Figs. 3 and 1, these parts being shown in the position which they occupy just before the leather leaves the measuring wheel, the feeler roll having already descended behind the leather into contact with the feed roller. Fig. 6 shows the position of the aforesaid parts at the moment when the leather has escaped from the measuring wheel, so that the latter as well asthe feeler roll are in contact with the feed roller. Thus Figs. 3 to 6 illustrate the mode of operation of one of the elements at different stages of the work.

In the improved measuring machine the, toothed wheels or segments serving as transmission gear are usually not in engagement with the pinions of the measuring wheels, but are brought into engagement therewith only at the beginning of the measuring operation, and are separated again at the end of such operation. As usual, a driven feed roller 1, Fig. 1, is provided, upon which the leather to be introduced over a table 2 is moved in the direction indicated by an ar row. Resting upon the feed roller 1 is the measuring wheel 3 driven by the said roller and held upon the axis l in a lever 5 which is fixed at 6 in the frame of the machine and adapted to swing. Each measuring wheel consists of two separate rims, Fig. 2, which are firmly connected with each other by the pinions 7. etween the two halves of the measuring wheel a feeler roll 8 is placed upon the feed roller 1. This feeler roll 8 is arranged upon the short arm of 'a bellcrank lever 9 pivoted at 1O, the long arm of this lever having at its end anadjusting screw 11. A spring 12 attached to the long arm oi the lever 9 serves-to force the feeler roll 8 continually against the periphery of the feed, roller- 1. Against the adjusting screw 11 bears one end of a rod 13 adapted to be displaced in the frame of the machine, while the lever it bears at 1 1* against the other end of the aforesaid rod, the lever 1 L carrying at its long arm, by means of bolt 18, the toothed wheel or segment set in motion by the measuring wheel. Around the nave or boss 19 of the segment 15 is placed a band or chain 20, which passes over the pulley :;721;of the to tal i1 1g' devicdiinorder to so transmit-the turning movements of the segment that the measurement will be transmitted to the indicatingd'evice. The lever M is arranged toturn upon the axis 16 and is provided witha c o'unter-we1ght 17 such that the downwardly extending arm together with the segment 15 tends to m'ove of the measuring wheel toward the pinion H I The screw llj of thebell-crank lever 9 is so adjusted; thatlthe space between the toothed segment 15 and the pinion 7 will be as small as possible. 1 At the end of the lever '14, just above-the bolt'lS, is arranged an adjnstihgscrew-QQ at the'hight of; the measuring-wheel lever 5.

leverstakes plaice inthe following manner, that is to'say, the screw -11 is so ad usted that the segment at a ve ryj small distaIice away from the toothed pinion? of the measuring wheel 3 and is consequently not carried away by the pinion. Onv the other hand the adjustmentof the screw 22 may serve to determine a favorable operative position of the segment 1.5, wherein 'the teeth of the segment cannot extend to 'the bottom of the spaces between the teeth ofthepinion 7 sothat very little friction will, be caused between such teeth. Now-if the leather is fed between the feed roller'l and the measuring wheels 3, such leather, in case it is thick will come in contact with the periphery of the measuring wheels some distance in advance of the point or line of contact between the measuringwheels and the feed roller thus passing totlie position illustrated in Fig. l. I At this moment the measuring wheels are raised, Fig. 3, and caused to turn, but in contradistlnction to the meas- 'uring machines heretofore employed no engagement takes place between the teeth of the pinionsi andthe teeth of the segments l5, so that'no" measurement can take place.

It is only when the leather is conducted,

farther over thef feed roller land feeler rolls 8 so as to lift the same, Figfl, that the seg- T ments 15 willengage with the pinions' 7- of the measuring wheels 3. As the feelerrolls 8 are lifted, the long arin'of theleverQ together with theadjusting screw 11 in each elen ient is moved-jjaway from the rod 13 agalnst the p ullfof the spring 12. Accordingly the transmission rod- 13 subjected to the action of theweight 17 follows, the le-.

ver l4amovesinf conjunction with the segmeant it toward the plnlon' of the measuring jwh'eel and engages tlierewith,-but only as far vthe adjustment "of thev screw 22", will permlt; this adjusting screw impinges against the end of the measuring-wheel le-- ver ,5 a'nd supports the same.

lifted the measurement commences; that Smined and depends on" thetime-.-.- when-the line. As'soon asjtheIleatherafter been measured passes to the position in measurement, and in like manner at. therea denly discontinue the measuring operation .It is I quite, immaterial whether-the several thickness of the-leather cannot ha'veilan :aFryom mo t when the feeler roll .8-

1 gear and indicating device *ofthe machine The aforesaid moment is accuratelydeter- 10 leather tobe' measured reaches the point of;

contact between the feed roller liiiandmeasi uring wheel3r Of course the point of contact lies exactly in the line'extending fromf the axis of the measuring wheel to the axis of the feed roller. The axis of the feeln 5. roll 8 likewise falls exactly in the aforesaid",

cated'in Fig." 5, that is to say,.when it has just left the 'feeler roll 8,-" the" latterl has.

v I I I passed again to its position of restuponjthe The adju'st1nent of the whole system of feed roller l and has, through the medium] of the mechanism 9,10, 1l,'1 12,.'l3 .14L, 1 5, '16,-

1 7, caused the segment; lo'to b e 'again ldis-i engaged from the pinionf'i ofthe measuring va-9e13, After'this moment ,thefmeasuring i wheelcan turn farther withouthavingthe l slightest action upon. the transmission gear the introduction of the leather andQat other I I moment of thepasSage of thejlatter to'the point Iof contact between the',-,measur'ing, wheel and-feed roller, to coinmenc'eYth" edge of the leather, on thepassageiofthe latter from the point of contact, to sud-.

parts of the leather passed through llayejy f different thicknesses eitherat the edge or withinfthe area or surface ofthe samefol. the described coupling mechanism, pro; vided between the measuring wheel andsegment and subjected to,v the action of the feeler roll, is constructed:in fsuchan, exp e-, p11 dient. manner that the "difierences I in, vth

deleterious "effect npon i-the;accuracy and certainty of the measurement.- E-Owingito 1 the fact that the measurement without, ex-j ception commences and terminates exactly, at the'pointfof contactflbetween the measuring whe'el'and theffeed roller and thatfiat this moment. the measuring wheels. are. 5

brought'into or'out of engagement [with the- .I a

transmission gear, pieces of leather; of dif-j ferent thicknesses cannot'cause anyfinac 1' curacies in the measu'r'emeiitijori beingintr'od'uced into the} inachine "and on leaving In measuring machines i.-.her t ofore constructed on ith rolling principle cer-:I.-:w

tain" width of the measuring wheels-was l necessary in order to obtain that the leather should be surely carried away by the measuring wheels at as small a specific pressure as practicable. measuring wheel was constructed, the greater were the inaccuracies caused by variable confining-lines of the leather such that the measurement already took place at the confining-line of the two lateral edges of the measuring wheel. with the described arrangement of the feeler roll causing the commencement and the termination of the measurement, it is however possible to construct the feeler roll as narrow as possible without thereby interfering with the certainty of the feed of the leather, because such feed is not affected by the feeler roll, but by the measuring wheels or the halves of the measuring wheels which, as will be readily understood, may be of any desired width, because such width has no influence upon. the measurement.

I claim 1. In a machine of the character described the combination, with measuring wheels adapted to roll over the leather to be measured, a feed roller and transmission gear,

of feeler rolls, means connecting said feeler rolls with said measuring wheels arranged for automatically establishing and interrupting the engagement of the measuring wheels with the aforesaid transmission gear.

2. In a machine of the character described the combination, with measuring'wheels con- However the broader the.

sisting of two halves, of feeler rolls ar ranged each between the said two'halves of such measuring wheels and means connecting said feeler rolls with said measuring wheels.

3. In a machine of the character described the combination, with a feeler vroll and a segment, of a lever mechanism connecting said feeler roll with said segment and adapted for converting a small movement of the feeler roll into a larger movement of the said segment.

4:. In a machine of the character described the combination, with segments, levers wherein these segments are pivoted, measuring wheels and pinions thereon, of weights provided on the said levers and adapted for moving the aforesaid segments toward the pinions of the measuring wheels.

5. In a machine of the character described the combination of segments, measuring wheels, pinions thereon, levers provided with weights and adapted for moving the aforesaid segments toward the pinions of the measuring wheels, feeler rolls, means connecting said feeler rolls with said levers, said connecting means adapted to convert small movement of said feeler rolls into a large movement of said segments, toward and away from said pinions.

AUGUST ABEL.

Witnesses:

JEAN GRUND, CARL GRUND.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents, Washington, 1). C. 

